832500030781 has 2 divisors, whose sum is σ = 832500030782. Its totient is φ = 832500030780.

The previous prime is 832500030779. The next prime is 832500030797. The reversal of 832500030781 is 187030005238.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 823501800900 + 8998229881 = 907470^2 + 94859^2 .

It is a cyclic number.

It is not a de Polignac number, because 832500030781 - 2¹ = 832500030779 is a prime.

It is a super-2 number, since 2×832500030781² (a number of 25 digits) contains 22 as substring.

Together with 832500030779, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 832500030781.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (832500030751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 416250015390 + 416250015391.

It is an arithmetic number, because the mean of its divisors is an integer number (416250015391).

Almost surely, 2^832500030781 is an apocalyptic number.

It is an amenable number.

832500030781 is a deficient number, since it is larger than the sum of its proper divisors (1).

832500030781 is an equidigital number, since it uses as much as digits as its factorization.

832500030781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 832500030781 in words is "eight hundred thirty-two billion, five hundred million, thirty thousand, seven hundred eighty-one".